Stamping-machine.



H. W. WINTER.

STAMPING MACHINE.

APPLICATION FILED AUG-9.1915.

Patented Jan. 21, 1-919.

Am W V W UNITED STATES PATENT OFFICE HENRY W. WINTER, OF METHUEN, MASSACHUSETTS, ASSIGNOR, BY MESNE ASSIGN- MENTS, 'IO UNITED SHOE MACHINERY CORPORATION, OF PATERSON, NEW JERSEY,

A CORPORATION OF NEW JERSEY.

\ STAMPING-MACHINE.

Specification of Letters Patent. Patented J an. 21,1919.

Application filed August 9, 1915. Serial No. 44,472.

To all whom it may concern: 7 4

Be it known that I, HENRY-W. WINTER, a citizen of the United States, residing at Me thuen', in the county of Essex and State of Massachusetts, have invented certain, Improvements in Stamping-Machines, of which the following description, in connection with the accompanying drawings, is a specification, like reference characters on the drawings indicating like parts in the several figures. r

'This invention relates to machines for stamping sheet material such, for example, as

. being provided with a hand operated conupper leather for boots and shoes.

An object of the invention is to provide a machine having a large number of stamping dies readily accessible and easily adjustable to present in stamping position the various characters required. In marking parts of shoe uppers, the manufacturer often desires to impress a part with a case number comprising as many as six digits, a size and width indication,*comprising five characters including a half-size symbol, and a match mark of two symbols. Of these thirteen symbols, the case number requires to bechanged only at relatively long intervals.

while the others must be changed much more frequently. An important feature of the invention, accordingly, consists in a marking machinehaving two series of adjustable stamping dies, each die of one series trolling. device by which the die may be readily set, while the dies of the other series are adjustable but are not provided with adjusting devices. Such construction renders it possible to provide a marking machine with the large number of dies necessary for all possible uses while, at the same time, convenient provision is made for the adjustment of those dies which require adjustment most frequently. i

The present invention, in one of its aspects,

contemplates the provision of a markingmachine equipped with heated dies, and certain features of the invention are designed to afford convenient means for heatmg such dies and forlcontrolling the adjustments of the heateddies. As herein shown, a series of thin disks are provided with die bearing teeth upon the periphery of each and these disks are arranged side by side upon a hollow journalmember which incloses an elecillustration and shown in the trio heating unit. Adjusting'means including a pinion arranged in mesh with each disk serve for turning the disks'to-presentone or another die in stamping position. This construction affords a compact arrangement of the dies and permits a large number of symbols to be impressed upon the work within a short space.

Other features of the invention consist in improved mechanism for controlling and adjusting the point of nearest approach of the stamping head and the work table and for permitting one to yield with respect to the other to accommodate work of varying thickness.

These and other features of the invention will be best understood and appreciated from the following description ofapreferred em bodiment thereof selected for. purposes of drawings in which- I Figure 1 is a view in perspective of the machine; Fig. 2 is a sectional View of the machine; Figs. 3 and 4 are detail views in perspective;

Fig. 5 shows a shoe part which has been stamped in the machine; and

Fig.- 6 is a cross sectional view of a portion of the stamping head.

Inone of its aspects the present invention consists in improvements in machines of the type disclosed in my prior Patent No. 1,137,103, granted April 27 1915. Such details asare not fully'shown in the accompanying drawings may correspond to those shown in said patent; The frame of the machine comprises a box-shaped casting 2 having formed therein bearings for the main driving shaft 4 which is actuated by the pulley 6 from any suitable source of power. In the forward part of the frame is carried a work plate 7 6 and an oscillating head 34 carrying a series of stamping disks 66 is arranged to swing toward and from the work plate.

The driving shaft t carries a pinion 8 located within the machine frame and ar-- ranged to mesh with a larger pinion 1O loosely mounted on a counter shaft 12. The pinion 10 forms one part of the loose member of a roller clutch of which an eccentric l=6 constitutes a part of the fast member. The clutch rollers are contained within a accompanying cage or ring 14 having a tooth which is normally held by a spring latch mounted in one arm of a treadle lever 15 as shown in Fig. 2.

: When the treadle is depressed, the tooth on the ring 14 is released and the clutch permitted to become engaged so that the eccen tric 16 is rotated.

An ececntric strap 18 encircles the eccentric 16 and is provided with a tubular stem or shank 20. Into the stem 20 extends the shank of a link member 22 pivotally connected to the rear end of the head 34 by a pin 28. The stem 20 of the eccentric strap is externally threaded to receive a nut 26 between which and a shoulder on the linkmember 22 is located a compression spring 24 tending normally to extend the connection. The action of the spring 24 may be varied by turning the nut 2611 or down upon the stem 20. The link member 22 and the pin 28 are bored to receive an adjusting pin 30 which, at its inner end, is, thread- 1 ed into the eccentric strap 18. At itsouter end the pin 30 is provided with ahand wheel 32 by turning which the-connection between the eccentric and the link member may be reduced in length. r

The head 34 is pivotally mounted upon a stationary journal shaft 36 extending across the frame of the machine. It is oscillated by the eccentric 16 through the connections above described. Its point of nearest approach to the work table 76 may be regulated by adjusting the length of the link connection through'the medium of the hand wheel 32, while the degreeof pressure may be regulated by adjustment of the nut 26.

The dies of the 'machine comprise two series of disks 62-66 mounted upona tubular ournal 64 which extends across between the two sides of the head 34. The journal 64 is made tubular to receive an electric heating unit 60 to which current is supplied by the wires 61 shown in Fig. 1.

.The left hand series of dies, as shown in Fig. 1, comprise a series of disks having but permit thedisks to be turned by the operator when it is desired to set up a new case number. V

The left hand series of diescomprise seven disks having teeth formed on "the periphery of each, which teeth carry the marking characters upon their ends. The two-right hand centrica'lly disposed elongated hubs her, and then by 'turnin disks indicate the size of the shoe upper, the third disk bears the half-size mark, and thefour remaining disks of this series may indicate Width or match mark. Asshown in Fig. 5, the size indicatedis 13%, the width .2, and the match mark FKZ.

Above and at the rear of the disks 62 is provided a journal 56 upon. which are mounted a series of idle pinions 58 meshing with the teeth of the stamping disks 62. These in turn mesh with the teeth of a series of pinions 40 mounted upon a journal member 38 in the upper-part .of the frame. That pinion 40 which corresponds to the one-half size disk 62 isprovided with a handle 42 by which it may be oscillated to move the one-half size die into or out of stamping position. 1 The two right hand pinions 40 are connected respectively with the hand wheels-44 and 46 by means of conshown in Fig. 6. The four left handjpinions 40 are similarly connected to the hand wheels 48, 50, 52 and Y54 which are disposed on the left side of the head 34. Each of the pinions is held yieldingly in position by .a leaf spring 41 secured at its lower end to a bar 43 extending across between the sides of the head 34. The springs 41 yield readily to permit their respective pinions to be turned through one or the other of hand Wheels.

At the rear edge of the work plate 76 is provided a gage 78 having a downwardly extending shank which is received in a socket iece 80 mounted 'in the machine frame. or adjustment from front to rear. The head 34 is provided with forwardly projecting arms which engage the lower surface of the gage 78 and elevate thegage against the tension of a spring 82. whenever the head 34 is elevated. The gage thus presents an effective surface to engage the edge of the work while the'st'amping head is elevated and is depressed out of the path of the head when the stamping head is lowered. In order to prevent adjustment of the stamplng head which would cause .the dies to be forced into the work plate,

there are provided a pair ofadjustable stops 84 threaded into the cars 85 on the ma chine frame and arranged to beencountered by the: arms of the head 34 :in the down ward movement of the latter. If the head is so adjusted that these stops are encountered, lost motion occurs between the head" and its operating eccentric against the compresslon. of the spring 24.

In operating the machine, the disks 66 .are first set .to give the required case numand match mark. The work is then presented upon -the. table 76-.and the machine the hand wheels devices mounted in the head opposi e the started, whereupon the stamping head is lowered and the shoe part is stamped or:v

bination, a head mounted for oscillationabout a pivot, a series of adjustable dies and another.

corresponding manually operated adjusting pivot, the adjusting devices being at a distance from the dies, and actuating members connecting each die and its associated adjusting device and spacing them from one 2. A stamping machine havingfin combination, a head mounted for oscillation about a pivot, a series of rotatable dies, a corresponding series of manually operated adjusting devices mounted in the head opposite the pivot, the adjusting devices being movable about a parallel axis remote from the axis of the dies, and permanent actuating connections movable about an axis situated between each die and its associated adjusting device.

' 3. A stamping machine having, in combination, a movable head, a series of toothed die carrying disks, a corresponding series of manually operated adjusting devices each including a toothed member, a toothed idler interposed between each die and the corresponding adjusting device, and a second series of disks concentric with the first and located opposite to certain of the adjusting devices. I

4. A stamping machine having, in combination, a work support and stamping head arranged for relative movement, said head including a tubular journal, an electric heating unit inclosed within the journal, a series of stamping disks rotatable upon thejournal, an idler meshing with each disk, controlling means individual to each disk and being each arranged to be grasped by the hand of the operator and to act through the respective idlers, the portions grasped being situated on the opposite side of the idlers from the disks.

5. A stamping machine having, in combination, a work support, an oscillatory head having a tubular journal, a stamping die adjustably mounted upon the journal, means located within the journal for heating the die, an idler mounted in the head, and a hand operated device for adjusting the die located'beyond the range of the heating means and acting through the idler.

6. A stamping machine having, in combination, a work support, and a stamping head having two series of adjustable stamping disks employed with different degrees of frequency, each disk of the more frequently employed series having an associated hand operated adjusting device and the disks of the other series being constructed tion, certain of the adjusting devices being opposite the disks of the less frequently em= ployed series.

7. A stamping machine having, in combination, a work support, a stamping head having tWo series of adjustable stamping disks, an idler meshing with each disk of one series, and a hand operated adjusting device acting through each idler.

8. A stamping machine having, in combination, a work support, astamping head having two series of stamping disks all ar ranged in line with eachother, separate hand operated adjusting devices for all disks of one series located upon the head and remote from their associated disks, and operating connections between said disks and said adjusting devices.

9. In a stamping machine, a plurality of adjustable dies bearing characters used with different frequency, a readily accessible device for determining the position of a frequently used die, and a device for determinand arranged to be set by direct manipula- V ing the position of a less frequently used die, the last-named device being confined to substantially the same space transversely ofthe machine as the die it controls.

10. In a stamping machine, a series of adjustable dies, devices situated at one side of the planes of the dies for respectively determining the position of said dies, a second series of dies used with less frequency than the first series, and devices for determining the position of the second series situated in the1 planes of the respective dies they contro 11. In a stamping machine, a plurality of series of adjustable dies, p0sition-determining means for one series of dies at one side of said dies, and position-determining means for another series situated in alinement with the respective dies which they control, each die and its positioning means lying in .a commonplane independent of theplanes of the associated dies.

12. A stamping machine having, in combination, a work support, a stamping head having two series of stamping disks, a sliding detent for each disk of one series, a hand operated adjusting device for each disk of the other series, and a spring detent acting upon each of said devices.

13. A stamping machine having, in combination, a work-support, an impression member movable into and out of cooperation with the support, an actuator, connections between the actuator and impression member including a link having sections movable relatively to one another, and means constructed and arranged to adjust the relation between the sections and extending to the end of the link.

14. A stampin'ginachine having, in combination, a Work support, a movable carrier member, a link plvoted thereto, an actuator for the carrler, and means extending through the pivot of the link and intothe" actuator for adjusting the relation of the said connection, and adjusting means for shortening"saidrconnection in opposition to 15 thespring. 7

16. In a stamping machine, a pluralityof series of adjustabledies, said'series extending laterally of the 'machine, position-determining means for one series'of diessout 20 In testimony whereof I have signed my 25 name to this specification.

HENRY W. WINTER.

Copies of this patent may be obtained tor'flve cents each, by addressing the Commissioner otlrstonts,

' Wssbingtom-D. 0. V 

